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Bi Folding Door Repair Tips Bi-fold doors are a great method of connecting your indoors and outdoors. They're great for letting in the sunshine and fresh air, but it's important to keep them in good condition to avoid damage. There are several common problems you might have to deal with when using your bifold door. Fortunately, they are simple to fix. Cracked Pivot Pins If you've recently added carpeting or changed the flooring material in your home, you might notice that your bi folding